1. Conservation Environment of Collection 
   藏品保存环境
2. conservation law of energy 
   能量守恒定律
3. conservation of historic building 
   城市历史建筑保护
4. conservation of rare animals 
   珍贵稀有动物的保护
5. conservation of rare plants 
   珍贵稀有植物的保护

查看更多例句 相关情景会话

• 1. 物质守恒，物质不灭
  conservation of matter || 物质守恒［不灭］...conservation of matters || 物质守恒，物质不灭...conservation of movement of the centre of gravity || 重心运动的守恒
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